Building fast.com
techblog.netflix.com
Building fast.com
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Re: Building fast.com
#21. When will someone build a tool like this and then open up the measurements data? A speed-measuring tool would be infinitely more useful if we could investigate the results beyond just our one device for one test. A question I really want to be able to answer: which ISP offers the fastest service in my area? fast.com and speedtest.net could easily answer this question if they made the data available.
2. I think tests like this that rely on a built-out network and well-placed CDNs and such are probably junk. A more useful test would be against a handful of download targets that aren't optimized, and then average the results. This is particularly true for Netflix. Case in point: fast.com says I download at 78Mbps, but speedtest.net has me down around 57. I'm only paying for 30.
Re: Building fast.com
#3Testing for speed is great and all but is there an app or something that can monitor my Mac's end-to-end connectivity to an internet source? Like, I feel like my connectivity is spotty but am not sure if it's Wifi, Comcast or other.
Re: Building fast.com
#4[deleted]
Re: Building fast.com
#51. When will someone build a tool like this and then open up the measurements data? A speed-measuring tool would be infinitely more useful if we could investigate the results beyond just our one device for one test. A question I really want to be able to answer: which ISP offers the fastest service in my area? fast.com and speedtest.net could easily answer this question if they made the data available. 2. I think tes…
Dslreports speedtest publishes the results publicly:
http://speedtest.dslreports.com/
Re: Building fast.com
#6Testing for speed is great and all but is there an app or something that can monitor my Mac's end-to-end connectivity to an internet source? Like, I feel like my connectivity is spotty but am not sure if it's Wifi, Comcast or other.
Trial/paid: https://www.pingplotter.com/download/mac/
Free/dockerized: https://hub.docker.com/r/dperson/smokeping/
Re: Building fast.com
#7Speed testing is a good starting point, but on my LTE connection (rural area) I find the latency to be very contributor to overall experience. Especially that once the link is saturated the latency shoots through the roof (up to x10). I wish there were some tools for testing more complex use cases.
Re: Building fast.com
#8Speed testing is a good starting point, but on my LTE connection (rural area) I find the latency to be very contributor to overall experience. Especially that once the link is saturated the latency shoots through the roof (up to x10). I wish there were some tools for testing more complex use cases.
Sounds like bufferbloat to me.
Tried using smart queue management like fq_codel on your end?
Or is it an overloaded LTE cell?
Re: Building fast.com
#9Speed testing is a good starting point, but on my LTE connection (rural area) I find the latency to be very contributor to overall experience. Especially that once the link is saturated the latency shoots through the roof (up to x10). I wish there were some tools for testing more complex use cases.
Latency is largely irrelevant to one-way video streaming (at least until it's so high it affects throughput), and since Netflix designed this to test your speed for their one-way video streaming service I think leaving out latency testing is reasonable.
Re: Building fast.com
#101. When will someone build a tool like this and then open up the measurements data? A speed-measuring tool would be infinitely more useful if we could investigate the results beyond just our one device for one test. A question I really want to be able to answer: which ISP offers the fastest service in my area? fast.com and speedtest.net could easily answer this question if they made the data available. 2. I think tes…
>I think tests like this that rely on a built-out network and well-placed CDNs and such are probably junk.
Depends on the goal - here Netflix wants to see how fast you can stream from their "built-out network and well placed CDNs" so testing those is completely relevant. For their purposes, testing a bunch of unoptimized and unrelated services would be "junk".